... occupying the apical and subapical region of the upper lobes (30 patients); (2) opacification with shrinkage of the upper lobes, often with considerable upward retraction of the lung roots ... Sarcoidosis of the Upper Lung Fields Simulating Pulmonary Tuberculosis Alvin S. Teirstein, M.D., F.C.C.P." and Louis E. Siltzbach, M.D., F.C.C.P."" Fifty-four of ... densities in the subapical portions of both upper lobes, more extensive on the right than on the left. On the basis of this film alone, the likeliest diagnosis would be pulmonary tuberculosis. ...